Add cli functionality (call out to babel cli and pass in the minify p…

[hzoo]

…reset)

We can change all the names here later to babili or whatever we decide in #8

Asked @gigabo on babel slack for help 😄

Also made the preset + cli a dependency (we probably don't want them as peer right)

[amasad]

interesting -- so the cli just shells out to babel-cli?

[hzoo]

Yeah, got it from #minify slack - spawn the babel-cli program with the same arguments given to babel-minify and also pass the env variables

$ ./bin/babel-minify.js src/index.js

"use strict";var _child_process=require("child_process"),_child_process2=_interopRequireDefault(_child_process);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj}}var args=process.argv.slice(2).concat(["--presets=minify"]),opts={stdio:"inherit",env:process.env};_child_process2.default.spawn(require.resolve("babel-cli/bin/babel"),args,opts);

[amasad]

great!